Poison-distributer.



PATENTED NOV. 7, 19025.

P. BRANDT. POISON DISTRIBUTER. unicum; FILED man. s, 1905.

2 SHEETS-SHEET l.

Milf/256.51

K f5 290W' a @f @my PATENTED lNOV. '.7, 1905.

P. BRANDT. POISDN DISTRIBUTER.

APPLIoATIoN FILED rms, 1905. 4

2 SHEETS-snm 2.

UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented Nov. 7, 1905.

Application filed February 3, 1,905. Serial No 243,930.

To @ZZ wiz/m, t may concer-u:

Be itknown that LPETTER BRANDT, a citizen of the United States, residingat Chisago City, in the county of Chisago and State of Minnesota, haveinvented certain new and useful Improvements in Poison-Distributers; andI do hereby declare the following to be a full,clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to poison-distributers, and is especially designedas an improvement on the device set forth and claimed in my UnitedStates Letters Patent No. 772,454, of date October 18, 1904.

The invention consists of the novel devices c and combinations ofdevices hereinafter described, and definedV in the claim.

In the accompanying drawings, which illustrate my invention, likecharacters indicate like parts throughout both views.

Figure 1 is a perspective view showing my improved poison-distributer inoperation, the same being applied to and operated by a man. Fig. 2 is aView, partly in plan and partly in section, showing the combined pumpand sprayer.

The numeral 1 indicates the figure of a man.

The numeral 2 indicates a tank, preferably of light sheet metal, whichtank is adapted to contain the poisonous liquid to be sprayed upon theplants. At its top the tank 2 is formed with a removable cap 3, thatcloses a neck which when opened admits the poisonous liquid to beintroduced into the tank. The tank is preferably carried from the shoulders, as shown in Fig. 1, and for this purpose is provided with ashoulder-strap 4.

The numeral 5 indicates the barrel of an airpump, the same having at itsdischarge end an air-outlet passage 6, that is closed against an inflowof air by a check-valve 7, applied to the end of the barrel 5. Workingin the barrel 5 is a piston 8, having a stem 9, which works outwardthrough a cap 10 on the outer end of the barrel and is terminated inabandpiece 11. The stem 9 works in a head 10 in the usual way undersulicient clearance to permit quite afree How of air into the barrel 5under the pumping action. The intermediate portion 8210il thepiston-head 8 works as a valve which closes against the body of the saidhead under the working stroke, but opens under a return stroke. In otherwords, the two valves 7 and 8SL operate in alternate order.

Rigidly secured to and surrounding the discharge portion of the barrel 5is an air-reservoir 12, provided at its outer end with an axi- .providedwith a small axial discharge-orifice 18, and the inwardly-projectingsleeve portion thereof is formed with a plurality of inletpassages 19,that open from the water-chamber afforded by the sleeve 15.

Vorking in the sleeve portion 'of the head 14 and in the outer end ofthe tubular stem 13 is a slide-valve 20, having an axialdischarge-orifice 21. The numeral 22 indicates a valve-stem thatprojects axially through the ysaid tubular stem 13 and is secured to thevalve 20. At its outer end this stem 22 is provided with a capillarypassage 23, that eX- tends axially from the outer end thereof and thendiametrically through said stem, so as normally to afford communicationbetween the interior of said tubular stem 13 and the discharge-orifice21 of said valve 20. A springarm 24, which is anchored at one end to theinterior of the reservoir-shell 12, is connected at its free end to theinner end of the stem 22, and to the free end of said arm is attached avalve 25, which when moved is adapted to close the inner end of thetubular stem 13. The tension ofsaid spring-arm 24 normally holds the twovalves 20 and 25 in open positions, as shown in Fig. 2. An operating-rod26 is attached at one end to the intermediate portion of the spring-arm24, and its outer end extends through the inner end of the airreservoir12 and terminates in a head 27. By pressing on the head 27 thespring-arm 24 may `be moved, so as to cause the air-cut-o valve 25 toclose the inner end of the tubular stem 13 and simultaneously move thevalve 20, so as to close the water-passages 19 of the spraying-head 14.This affords means for-quickly cutting off and turning on the spray.

The air-chamber 12 has a nipple 28, which is connected by aflexible tube29 to anipple 30, that opens into the upper portion of the tank 2. Thewater-chamber within the sleeve 15 IOO IIO

has a nipple 31, that is connected by a {iexible tube 32 to a nipple 33,that projects from the lower portion of the tank 2.

With the above-described construction itis evident that whenair-pressure is produced in the air-reservoir 12 by the operation of thepump a portion thereof will be discharged through the hollow stem 13,through the airpassages 21 and 23 of the valve 20 and stem 22,respectively, and through the discharge-orifice 18 of the spraying-head14. Also a portion of the air will be driven into the upper por-4 tionof the tank 2, and the pressure exerted thereby will force a stream ofwater to How through the water-tube 32 into the waterchamber 15, thencethrough the water-passages 19 into the small chamber of the spraying-cap14, where it becomes subject to the fine spray of air and is carriedtherewith in the form of aspray out through the dischargeorifice 18 ofsaid spraying-cap.

The device above described has been constructed and put into use and hasbeen found extremely efficient for the purposes had in view.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is as follows:

In a spraying device, the combination with a liquid-containing tank, ofan air-reservoir and a water-chamber, rigidly attached the one to theother, and in communication with said tank, a tubular air-delivery stemleading outward from said air-reservoir through said water-chamber, aspraying-headv closing the outer ends of said water-chamber and of saiddelivery-stem, and havinga discharge-orifice, and in communication withthe interior of said water-chamber, a slide-valve working in saidspraying-head and having an air-passage opening into said delivery-stem,a valve-stem extending from said valve into said air-reservoir, saidwater chamber, air passage and valve-stem concentrically arranged andsaid valve-stem having at its inner extremity a second valve for closingsaid air-delivery stem, a spring-arm connected to said valve' stem, andan operating-rod extending from said spring-arm t0 the exterior of thedevice, substantially as described.

In testimony whereof I affix my signature in presence of two Witnesses.

PETTER BRANDT.

Witnesses:

CHARLES A. I/VALLMARK, DAVID BRANDT.

